Solar Cell Class, Solar Panel Class, Grading, Quality A, B, C, D

Solar cell grading A, B, C, D

With solar cells accounting for 60%+ of the solar panel manufacturing costs, solar cells are the number one component used to cut overall costs of a solar panel.

1. Grade A solar cells
Grade A cells are simply without any visible defects, and the electrical data are in spec.
The specifications of the cells can be measured with cell testing equipment.
The perfect grade A cell may still have a slight bend of 2.0mm and a tiny color deviation is permitted.
Below a grade A solar cell. Due to the light the color seems to deviate, but in fact, this is a flawless solar cell:

2. Grade B solar cells
Grade B cells have visible but tiny defects, and the electrical data are in spec.
The following visible defects are common:
1. Slight bend of 2.0mm to 2.5mm
2. Color deviation, Visible yellow area takes more than 1/4 area of total on the Surface
3. Missing prints greater than 0.5mm
5. Paste leakage
6. Scratch
7. Water marks
Here a couple of examples of Grade B solar cells:

3. Grade C solar cells
A Grade C solar cell has visible defects, and the electrical data are off-spec.
All solar cells with defects worse than Grade B can be classified as Grade C.
A solar cell can be graded as C when the partly broken cell which could be cut into smaller pieces and re-used.
Here are a number of Grade C solar cell examples:

4. Grade D solar cells
A Grade D solar cell is broken and can not be cut in smaller cells. There’s not much you can do with these.


  1. Sanaullah Khan on December 30, 2020 at 10:57 pm

    Sir LA hour A claas mai kon kon sa brand available hai pleas reply

  2. Traditional fisher in Pakistan Worldwide on December 30, 2020 at 11:03 pm

    This is not authentic method

  3. Muhammad Saeed on December 30, 2020 at 11:03 pm

    Class A…. Purchase karna chahye kia sir…..phir class b , c , d… liye use karay gay…. please reply me.. thanks

  4. shahzad mehmood on December 30, 2020 at 11:06 pm

    Lahore mai a grade panel kitny ka hai

  5. M. Ayoub on December 30, 2020 at 11:25 pm

    mery bhai asy pta nahi chalta kyo ky in jo cells toty hoty hai wo taps laga ky jor kar phir new kar ky laga daty hai jo admi ko nazar nahi aty mai khod solar pannel wali factory mai work karta hn or bnata hn ye sirf ap ki information ky liay tha

  6. junaid khan on December 30, 2020 at 11:26 pm

    Kharidatay waqr Solar panels ka output check karnay ka triqa bhi bataa,ain plz.

  7. TRIP OF NATURE on December 30, 2020 at 11:27 pm

    Lusy . Video👎👎👎

  8. briekhnaa on December 30, 2020 at 11:36 pm

    Mono solar panels ke bare mai kya jhyal hai ?

  9. G Abbas on December 30, 2020 at 11:38 pm

    Bhai m bahawalpur se bt kr rha hn plz mashwra dny m n panal lny hn
    VM 5.2 k lia mjy koi best compny bta dny plz k m kis compny ka panal ln,bahawalpur m powermax ,solarmax,risen,mila h .ap best mashwra dny k in m se ln ya koi or compny ka ln plz reply

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